Plain English

Writes data to a specific memory bank on the RFID tag. More granular than ^RF — lets you target specific memory banks and addresses.

When to use

When you need to write to specific tag memory locations (user memory, access password, etc.) rather than just the EPC.

Syntax

^RWa,b,c

Parameters

ParameterDescription
aMemory bank: E (EPC), U (user), R (reserved)
bStart address (word offset)
cFormat: H (hex), A (ASCII)

Example

^XA
^RWU,0,H^FD48656C6C6F^FS
^XZ

Write "Hello" in hex to user memory bank

Try it in the playground View all ZPL commands